001/*
002 * jPOS Project [http://jpos.org]
003 * Copyright (C) 2000-2026 jPOS Software SRL
004 *
005 * This program is free software: you can redistribute it and/or modify
006 * it under the terms of the GNU Affero General Public License as
007 * published by the Free Software Foundation, either version 3 of the
008 * License, or (at your option) any later version.
009 *
010 * This program is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
013 * GNU Affero General Public License for more details.
014 *
015 * You should have received a copy of the GNU Affero General Public License
016 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
017 */
018
019package org.jpos.iso;
020
021/**
022 * The NullPadder does not pad. It is a utility class to use Null Object
023 * pattern.
024 * 
025 * @author joconnor
026 * @version $Revision$ $Date$
027 */
028public class NullPadder implements Padder
029{
030    /** Public constructor; prefer {@link #INSTANCE} for repeated use. */
031    public NullPadder() {}
032    /** The only instance you need */
033    public static final NullPadder INSTANCE = new NullPadder();
034
035    /**
036     */
037    public String pad(String data, int maxLength)
038    {
039        return data;
040    }
041
042    /**
043         * (non-Javadoc)
044         *
045     */
046    public String unpad(String paddedData)
047    {
048        return paddedData;
049    }
050}